A handful of the Israeli soldiers who were on duty protecting the wall have been saying for over a year that they got conflicting orders that morning, how they were told to stand down, and of course it all then unfolded as it did.
Some of the soldiers were haunted by this and spoke out; I saw an interview involving one of those soldiers (in Hebrew, subbed in English) and it was undeniably real, just going by this guy struggling to get through talking about it. If I can find a link for it I'll post it.
But no, this wasn't just any regular morning. They do get regular breach warnings on the wall, but they have a protocol for that, which is one of the things these soldiers explained in the interview. They get a barrier notification or some other indication of breach, they notify their immediate superior, and that person kicks it up the chain while they go out to take a physical look at it. In this particular case, these soldiers were directly ordered not to go out before any notification was received. In his own words, he was serving in the Gaza area, and did not hesitate to respond to ANY sign that there was a breach. "For every little thing we'd jump the fence, every little thing."
But that morning they got the order not to do so. About an hour after this order was passed down is when the killing started. This is why he is haunted. He genuinely feels like they could have stopped it, or at least slowed it down, and were prevented from doing so. He also personally lost a leg that day, and many of his friends.
EDITED TO ADD: I looked in my history and found the article. It's not just an interview but has footage of the soldier testifying before the Knesset, Israel's congress. The video is on X embedded in the article, and it includes the audio recording of the orders his unit were given that morning to stand down an hour BEFORE any breach notifications were received.